Can you save recordings as MP3 or Wav files

it seems we can only save files in one fomat and if you want to share a file it does not recognise unless they are Wav or MP3

Please help

You save AUP3 projects which only open in Audacity. You may not need a project at all.

You export audio files.

File → Export Audio. You can select the format from there.

WAV and MP3 (and some other formats) are built-in.

To open or export to other formats you may need to install FFmpeg.